My guess is the OP doesn't know what a Gnostic Christian is either. Gnostics actually believe knowledge is intuitive, so they pretty much reject anything that comes through study, especially science, because anything but the spiritual world is false. Many of them actually believe the physical world is a manifestation of Satan.
There are as many Gnostic cults as there are Christian cults.
This one does not believe in the fantasy, miracles and magic that you believe in.
Most have never read their scriptures literally. Instead they use them the way they are supposed to be used. To further discussion and thought.
You will note that the Gnostic Jesus was superior to the Christian one. He did not spout un-workable rhetoric. Also, Gnostics did not tie his good name to your genocidal son murderer.
They were brighter than that.
As to Satan, mythical Satan that is, you might remember that it was Christianity who gave him dominion of earth and your God who cursed the earth.
Gnostics tend to see the perfection of what is while you do not even as your scriptures say that God creates all things perfect and that perfection breeds true and continues.
Regards
DL